Chair part



1.1 is a perspective view of a chair part, showing my new design;

1.2 is another perspective view thereof, from a different angle than 1.1;

1.3 is a left view thereof;

1.4 is a right view thereof;

1.5 is a front view thereof;

1.6 is a top view thereof; and

1.7 is a bottom view thereof. 

CLAIM The ornamental design for a chair part, as shown and described. 